r (division sign) 5
86
It is: r/15
35
35/r 35 ÷ r
" 5(p+r) " is.
18.8
It is: r/15
35
35/r 35 ÷ r
It is an equation in the variable r.
" 5(p+r) " is.
one fifth of r
As an expression it is: 5(p+r) which means 5p+5r
5
18.8
The quadratic expression: r2+10r+25 = (r+5)(r+5) when factorised
45
5r = 25 is a linear equation in one variable, r. The solution is r = 5.